Many of the problems I have had with my '05 STR were either directly or indirectly related to failure of a coolant hose. I fret about taking long trips for fear of "Low coolant" immediately leading to "No coolant" in the middle of nowhere.

I often think that if I were to replace ALL the coolant hoses at one time, the car would be more trustworthy for those long trips. Maybe I'm wrong, but am curious to know if there's anywhere I can get a list of every single coolant hose for an '05 STR, showing part number, price and average lifetime expectancy.

Don't really want to spend hours wading through JTIS unless there's no other way. Even then, JTIS stops at '04.

 

Why not JEPC which is also a free download here?

That way you only need to lookup the cooling and heater sections because those are the only systems carrying coolant.

 

Thanks, Plums, I will have a look. Still hoping someone has already been there and done that. Even my indie, who knows he would get a chunk of business, does not seem too keen to do the research.

 

Since it's one of the SC models, there are the heater hoses under the SC ... major job. Are you sure you want to go that route?

 

I've checked out all my coolant hoses on my 03 with 78k miles and I haven't found any weak spots. The only one that I have seen become an issue is the one under the s/c. It looks like Jaguar addressed that one as the newer hose is one piece vs the older 2 piece design.

 

That $25 hose was recently changed when the fuel rail was removed to seal off the leaking pulsation dampers. Big job, big bill.

In addition, however, a couple of overhead coolant hoses have perished, leading to low coolant --> no coolant --> narrow escape. Then, the hose to the supercharger coolant pump. Now, a hose from the thermostat housing is sweating.

And yet I gather from all comments so far that even though these hoses are 8 years old, there's really no need to consider across-the-board replacement?

 

I think tbird6 has replaced most if not all, give him a chance to post...

 

Thirty years ago, the coolant hose mantra was "replace them every four years". While that probably originated from the Gates Company, it was standard practice for many shade-tree mechanics. Of course, hoses were far less costly back then, as well as much easier to get to for removal/replacement....

Given what we know regarding the cooling system weaknesses in these Jaguars, replacing your hoses at eight years of age strikes me as a sound preventive maintenance approach. I certainly wouldn't question you if you opt to go that route....

 

Yes I changed every coolant hose I could get to on my 2005 STR. There are a lot of them and I believe it was 18 hoses altogether. I think there are three (3) left that are blocked by the SC.

Sorry I can't find the part number list and I have been searching. I do have the under SC hose and all the gaskets to change it out but with more time it seems that only a few STR's have that problem. I am now at 94K with the original SC hose. I plan on waiting until it gives me problems as most fail with a small leak and not a complete burst.
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Eighteen cooling system hoses in one car??

There's an engine designer somewhere in Europe that needs to be drawn and quartered....

 

18 hoses!! Jumping Jehosaphat!! No wonder I have this feeling of unease.

I have only been able to locate 3 or 4 hoses in JEPC (am I being dumb?), so if you can find that list, it's tbird6 for President.

 

I thought mine was leaking but it was only starting to go soft. It really isn't too bad if you have worked on a car before. It gave me a chance to change the oil in the s/c and put a new pulley on as well. A weekend and you would have it done with ease.

 

18 could well be on the STR. Modern cars have extras (TB - throttle body, for example) plus STR has intercoolers, aux coolant pump, intercooler pump and so on. Have a look at the coolant parts of JEPC (free on here)...

 

I know exactly what you mean. I've replaced two coolant hoses in the past year due to breaks/bursts. Both times I was lucky enough to make it to the mechanic by purchasing coolant and refilling the reservoir when the light came on.

I am now very hesitant to give the car much gas (go WOT) or take long road trips, both things that I love doing in this car. I think your ideal of replacing hoses is quite good and would certainly reduce the anxiety related to coolant hoses bursting at inopportune times.

 

Just one?

If you've ever seen the parts diagram for the group next to the firewall, it looks like the work of a bunch of people with ADD all dancing to their own music. Add a piece here, splice it there, put in a joiner over here .... No rhyme, reason, or logic other than looking busy for the manager.

The result makes Rube Goldberg look like a rank amateur at his own craft.

It could not possibly been the work of one person capable of coherent or even incoherent thought.

And of course, Jaguars are "blessed" with the use of those godforsaken, solution looking for a problem, Norma connectors. The inventor of that line of products should be boiled in oil before the drawing and quartering.

 

At least here is a picture of the cooling hoses on the STR.




And don't forget the SC Inter-cooler and all it's plumbing.




Oops! I almost forgot ! The EGR hose. Hard one to get to! I have that in stock ready to go. For us STR guys we only need #18 and #11 hose. #3 is the metal EGR tube that gets holes in it and #1 is the EGR valve and don't forget the two gaskets for it.


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Thanks - not seen them all in one place before.
Oh... are the TB ones there?

 

Here is my two cents for hoses and approx. prices:
XR851819 - Hose from T-stat to elec. heater pump, $60 dealer, $40 online
AJ811771 - Coolant Res. Bleeder hose, $78 dealer, $40 online

 

Good catch JagV8!

I will post the throttle body diagram later. That hose is show in my top diagram but only the end at the front of the motor.
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Anyone know what #4 is from the pictures? The big black plastic hunk coming from the radiator? Mine is cracked, I have plastic welded it, but it is leaking again after about 10,000 miles.

Seems like a huge pain to replace.

Thanks.